Page 10 of Buckeye, Dotco, Gardner-Denver Pneumatic Power Motors by Cooper Power Tools

rotary vane rotary vane 21mf-900/910 series s maximum motor power 21mr-910 series s maximum motor power 0.3 hp 0.22 kw s torque range 0.25 hp 0.19 kw s torque range 0.24 ­ 11.3 ft lbs 0.3 ­ 15.3 nm s non-reversible s side exhaust s threaded or keyed spindle 21mf-900 21mr-911 1.2 ­ 10.0 ft lbs 1.6 ­ 13.6 nm s reversible s side exhaust s keyed spindle speed code code 0 1 2 3 code 4 code 5 6 7 a dim 5.69 6.06 6.75 speed code code 1 2 3 code 4 code 5 6 7 a dim 6.50 6.75 7.56 speed code refers to last digit in model number speed code refers to last digit in model number model number 3/8 threaded 3/8 keyed rpm at max hp free speed 12000 2375 1750 1400 1050 450 325 250 24000 4750 3500 2800 2100 900 650 500 stall torque ft lbs nm .24 1.30 1.70 2.10 2.80 6.90 9.30 11.30 .3 1.8 2.3 2.8 3.8 9.4 12.6 15.3 weight lbs 1.7 1.7 1.7 1.7 1.8 2.0 2.0 2.0 kg .771 .771 .771 .771 .816 .907 .907 .907 gear ratio 5.0:1 6.8:1 8.6:1 11.4:1 26.6:1 36.9:1 48.0:1 model number spindle ­ rh rotation 21mf-900 21mf-901 21mf-902 21mf-903 · 21mf-904 · 21mf-905 21mf-906 21mf-907 21mf-910 21mf-911 21mf-912 21mf-913 21mf-914 21mf-915 21mf-916 21mf-917 at max hp 2000 1500 1225 900 375 275 200 rpm free speed 4000 3000 2450 1800 750 550 400 stall torque ft lbs nm 1.20 1.60 1.90 2.50 6.20 8.30 10.00 1.6 2.2 2.6 3.4 8.4 11.3 13.6 weight lbs 1.9 1.9 1.9 2.0 2.2 2.2 2.2 kg .862 .862 .862 .907 .998 .998 .998 gear ratio 5.0:1 6.8:1 8.6:1 11.4:1 26.6:1 36.9:1 48.0:1 3/8 keyed spindle · 21mr-911 21mr-912 21mr-913 · 21mr-914 · 21mr-915 · 21mr-916 21mr-917 ·available on quotation basis only general air inlet 1/4 npt air consumption 14 cfm 40 m3/min offset side-to-center ­ 15/16 ·available on quotation basis only general air inlet 1/4 npt air consumption 12 cfm 34 m3/min offset side-to-center ­ 47/64 archieves full speed within a half revolution all tools performance rated 90psi 620 kpa air pressure standard equipment 1015869 muffler can be reversed instantaneously and continuously all tools performance rated 90psi 620 kpa air pressure standard equipment 1015748 muffler 14 15

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